This two-part 5-pound foam is recommended for marine use Mix, shake, pour onto the surface. Due to its high density, it can expand up to 2/3 the volume of 2-pound industrial grade foam (1.5-inch rise).
A two-part liquid urethane closed-cell system meaning individual cells of foam trap in air and keep liquids out. For use in hulls and cavities for flotation or insulation. Not affected by gas or oil. 5 Lb. per cubic foot density. The mix ratio is 1 to 1.
WARNING: Cancer – www.P65Warnings.ca.gov